Citadel Advisors
COSM icon

Citadel Advisors’s Cosmos Holdings COSM Stock Holding History

Citadel Advisors’s Portfolio COSM Stock Details COSM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$94K Buy
296,300
+280,700
+1,799% +$118K ﹤0.01% 12065
2025
Q4 		$7.77K Buy
+15,600
New +$11.6K ﹤0.01% 12447
2025
Q1 		– Sell
-6,200
Closed -$4.15K – 14606
2024
Q4 		$4.15K Buy
+6,200
New +$4.54K ﹤0.01% 13949

Other funds holding COSM

Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $5.75B AUM 30.56% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Citadel Advisors's COSM Position: Q1 2026 in Review

Citadel Advisors reduced its Cosmos Holdings (COSM) stake by 67% in Q1 2026, selling an estimated $34.8K and leaving 40,306 shares worth $12.8K. The position accounts for ﹤0.01% of the portfolio, ranked #12729.

Citadel Advisors first reported a position in COSM in Q2 2025 and has held it in 4 quarters since. The position peaked at $250K in Q3 2025. 21 funds tracked by Wall St. Rank hold COSM as of Q1 2026.

  • Citadel Advisors held 40,306 shares of Cosmos Holdings worth $12.8K as of Q1 2026.
  • Citadel Advisors sold 82,850 Cosmos Holdings shares in Q1 2026, an estimated $34.8K.
  • Cosmos Holdings made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #12729 holding.
  • Citadel Advisors first reported a position in Cosmos Holdings in Q2 2025 and has held it in 4 quarters since.
  • Citadel Advisors's Cosmos Holdings position peaked at $250K in Q3 2025.
  • 21 funds tracked by Wall St. Rank held Cosmos Holdings as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.